4pcs Square Hole Drill Bits 1/4 5/16 3/8 1/2 Wood Mortising

Description:
1. With overall heat treatment, making it has high hardness and long service life.
2. U‑shaped chip grooves, facilitate the discharge of wood chips and improve drilling efficiency.
3. The force is in a plane, which is effectively protected and can avoid the situation of bursting at the beginning.
4. Universal shank type, the drill tail adopts a roun designed, which makes the clamping more stable.
5. Wide application, suitable for square hole drills and square tenon machines.


Specifications:
Condition: 100% Brand New
Item Type: Square Hole Drill Bits
Material: Bearing Steel
Color: As picture shown
Uses: Suitable for wood products such as density board, medium fiber board, particle board, wood, etc., suitable for square hole drills and square tenon machines


Specifications: 1/4, 5/16, 3/8, 1/2


SpecificationsHole
SizeShank
DiameterGrooves
DepthTotal
Length
1/46.4mm /
0.3in4.1mm / 0.2in
45mm/
1.8in170mm / 6.7in
5/168mm /
0.3in5.5mm / 0.2in
60mm /
2.4in200mm / 7.9in
3/89.5mm /
0.4in6.5mm / 0.3in
60mm /
2.4in210mm / 8.3in
1/212.7mm /
0.5in8.5mm / 0.3in
60mm /
2.4in210mm / 8.3in
.


Package list::
4 x Square Hole Drill Bits
Note:
Cannot be used on metal, concrete, glass and gypsum board.